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Ensemble HPe 150/200
2.5.1. Auxiliary Encoder Channel (J205)
The auxiliary encoder interface accepts a 5 VDC RS-422 differential quadrature line driver signal. It accepts
a 10 MHz (max) encoder signal frequency (25 nsec minimum edge separation), producing 40 million counts
per second, after times four (x4) quadrature decoding.
This encoder channel can be used as an input for master/slave operation (handwheel) or for dual feedback
systems. The auxiliary encoder interface does not support analog encoders and cannot be used as an input
for the -MXH option.
The auxiliary encoder channel can also be used to echo the standard encoder signals or as the PSO output.
Configuring the PSO hardware will automatically configure this encoder channel as an output (refer to
Section
2.5.2.) and will remove the 180 ohm terminator resistors.
N O T E : Use the EncoderDivider parameter to configure the bi-directional encoder interface on the aux-
iliary I/O connector. The EncoderDivider parameter converts the auxiliary encoder interface to an output
and defines a divisor for the encoder echo. Refer to the Ensemble Help file for more information.
Table 2-20:
Auxiliary Encoder Channel Pin Assignment (J205)
Pin#
Description
1
Auxiliary Sine+
2
Auxiliary Sine-
10
Auxiliary Cosine+
11
Auxiliary Cosine-
12
+5 Volt (500 mA max)
19
Auxiliary Marker- / PSO output
20
Auxiliary Marker+ / PSO output
21
Common (+5 Volt User Supply, 500 mA max)
(2) For PSO, see
Section 2.5.2.
46
(2)
(2)
Chapter 2
Installation and Configuration
Bidirectional
Bidirectional
Bidirectional
Bidirectional
Bidirectional
Bidirectional
www.aerotech.com
In/Out/Bi
Output
-
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